From d6a738ee60f30f4a9fc4b8ae3bc3e11762cf0b43 Mon Sep 17 00:00:00 2001
From: Alexandr Karpov <alexandr.d.karpov@gmail.com>
Date: Fri, 14 Apr 2023 19:37:16 +0300
Subject: [PATCH] added csv

---
 akarpov/files/previews/__init__.py      |  2 +-
 akarpov/files/previews/text/__init__.py |  2 +-
 akarpov/files/previews/text/csv.py      | 34 +++++++++++++++++++++++++
 akarpov/files/views.py                  |  2 +-
 poetry.lock                             | 15 +++++++++--
 pyproject.toml                          |  1 +
 6 files changed, 51 insertions(+), 5 deletions(-)
 create mode 100644 akarpov/files/previews/text/csv.py

diff --git a/akarpov/files/previews/__init__.py b/akarpov/files/previews/__init__.py
index 51ab277..ff771b1 100644
--- a/akarpov/files/previews/__init__.py
+++ b/akarpov/files/previews/__init__.py
@@ -19,7 +19,7 @@
         "avif": image.basic.view,
         "bmp": image.basic.view,
     },
-    "text": {"css": text.common.view, "plain": text.plain.view},
+    "text": {"css": text.common.view, "plain": text.plain.view, "csv": text.csv.view},
 }
 
 source_code = {}
diff --git a/akarpov/files/previews/text/__init__.py b/akarpov/files/previews/text/__init__.py
index a9a0aaf..4f27b08 100644
--- a/akarpov/files/previews/text/__init__.py
+++ b/akarpov/files/previews/text/__init__.py
@@ -1 +1 @@
-from . import common, plain  # noqa
+from . import common, csv, plain  # noqa
diff --git a/akarpov/files/previews/text/csv.py b/akarpov/files/previews/text/csv.py
new file mode 100644
index 0000000..d86bfb7
--- /dev/null
+++ b/akarpov/files/previews/text/csv.py
@@ -0,0 +1,34 @@
+import csv
+
+import chardet
+import structlog
+
+from akarpov.files.models import File
+
+logger = structlog.get_logger(__name__)
+
+
+def view(file: File):
+    try:
+        try:
+            with open(file.file.path, newline="") as csvfile:
+                dialect = csv.Sniffer().sniff(csvfile.read(1024))
+                csvfile.seek(0)
+                reader = csv.reader(csvfile, dialect)
+                for row in reader:
+                    print(row)
+        except UnicodeDecodeError:
+            rawdata = open("file.csv", "rb").read()
+            enc = chardet.detect(rawdata)
+            print(enc)
+            with open(file.file.path, newline="", encoding=enc["encoding"]) as csvfile:
+                dialect = csv.Sniffer().sniff(csvfile.read(1024))
+                csvfile.seek(0)
+                reader = csv.reader(csvfile, dialect)
+                for row in reader:
+                    print(row)
+    except Exception as e:
+        logger.error(e)
+    static = ""
+    content = ""
+    return static, content
diff --git a/akarpov/files/views.py b/akarpov/files/views.py
index 0e397d7..b9c39f2 100644
--- a/akarpov/files/views.py
+++ b/akarpov/files/views.py
@@ -18,7 +18,7 @@
 
 class TopFolderView(LoginRequiredMixin, ListView):
     template_name = "files/list.html"
-    paginate_by = 20
+    paginate_by = 19
     model = File
 
     def get_queryset(self):
diff --git a/poetry.lock b/poetry.lock
index 7acb9db..fe58ef2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -689,6 +689,18 @@ Django = ">=3.2"
 daphne = ["daphne (>=4.0.0)"]
 tests = ["async-timeout", "coverage (>=4.5,<5.0)", "pytest", "pytest-asyncio", "pytest-django"]
 
+[[package]]
+name = "chardet"
+version = "5.1.0"
+description = "Universal encoding detector for Python 3"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "chardet-5.1.0-py3-none-any.whl", hash = "sha256:362777fb014af596ad31334fde1e8c327dfdb076e1960d1694662d46a6917ab9"},
+    {file = "chardet-5.1.0.tar.gz", hash = "sha256:0d62712b956bc154f85fb0a266e2a3c5913c2967e00348701b32411d6def31e5"},
+]
+
 [[package]]
 name = "charset-normalizer"
 version = "3.1.0"
@@ -3163,7 +3175,6 @@ files = [
     {file = "Pillow-9.5.0-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:c1170d6b195555644f0616fd6ed929dfcf6333b8675fcca044ae5ab110ded296"},
     {file = "Pillow-9.5.0-cp311-cp311-win32.whl", hash = "sha256:54f7102ad31a3de5666827526e248c3530b3a33539dbda27c6843d19d72644ec"},
     {file = "Pillow-9.5.0-cp311-cp311-win_amd64.whl", hash = "sha256:cfa4561277f677ecf651e2b22dc43e8f5368b74a25a8f7d1d4a3a243e573f2d4"},
-    {file = "Pillow-9.5.0-cp311-cp311-win_arm64.whl", hash = "sha256:965e4a05ef364e7b973dd17fc765f42233415974d773e82144c9bbaaaea5d089"},
     {file = "Pillow-9.5.0-cp312-cp312-win32.whl", hash = "sha256:22baf0c3cf0c7f26e82d6e1adf118027afb325e703922c8dfc1d5d0156bb2eeb"},
     {file = "Pillow-9.5.0-cp312-cp312-win_amd64.whl", hash = "sha256:432b975c009cf649420615388561c0ce7cc31ce9b2e374db659ee4f7d57a1f8b"},
     {file = "Pillow-9.5.0-cp37-cp37m-macosx_10_10_x86_64.whl", hash = "sha256:5d4ebf8e1db4441a55c509c4baa7a0587a0210f7cd25fcfe74dbbce7a4bd1906"},
@@ -5202,4 +5213,4 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "717219069cdeaa5037bc3693ddb6580db23e67d0e6ae42b47deed69a048622ea"
+content-hash = "580bc9d748f65b25b9de3554c49e5c05a9cb3fccc60ce411b8f953ab70f2c14f"
diff --git a/pyproject.toml b/pyproject.toml
index c6cd624..00cddb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -86,6 +86,7 @@ xvfbwrapper = "^0.2.9"
 vtk = "^9.2.6"
 ffmpeg-python = "^0.2.0"
 cairosvg = "^2.7.0"
+chardet = "^5.1.0"
 
 
 [build-system]